What airlines fly to Ontario?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Ontario from Ohio according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 9 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ohio to Ontario?

Frontier, Delta, and Alaska Airlines are the most popular carriers operating from Ohio to Ontario

How long does it take to fly to Ontario?

Average flight duration from Ohio to Ontario depends on which airport you fly into and out of. Flying from Cincinnati to Los Angeles is 4h 49m on average, while flying from Columbus to Los Angeles is 4h 52m on average. Los Angeles is the most popular airport in Ontario.

When did momondo last update prices for flights from Ohio to Ontario Airport?

Prices for flights from Ohio to Ontario Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Ohio to Ontario Airport?

As of December 2025, there are 5 operators available to choose from for flights from Ohio to Ontario Airport.

How old do you have to be to fly from Ohio to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ohio to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$63 Cheap Flights from Ohio to Ontario in 2025/26

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Find the cheapest flights from Ohio to Los Angeles

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 am - 9:34 pm

DTW

ONT

16h 04m1 stop

8:35 am - 11:55 pm

ONT

DTW

12h 20m1 stop

$133Frontier

Tue, Feb 10 - Tue, Feb 17

2:11 pm - 7:10 pm

CVG

ONT

7h 59m1 stop

11:04 am - 11:58 pm

ONT

CVG

9h 54m1 stop

$142Frontier

Mon, Feb 2 - Thu, Feb 5

7:00 am - 3:08 pm

PIT

ONT

11h 08m1 stop

6:20 am - 7:04 pm

ONT

PIT

9h 44m1 stop

$254Multiple Airlines

Wed, Jan 28 - Mon, Feb 2

6:51 pm - 11:32 pm

CMH

ONT

31h 41m1 stop

6:14 am - 5:55 pm

ONT

CMH

8h 41m1 stop

$264Alaska Airlines

Wed, Feb 18 - Wed, Feb 25

7:00 am - 8:36 pm

PIT

ONT

16h 36m1 stop

4:03 pm - 6:46 pm

ONT

PIT

23h 43m1 stop

$264Alaska Airlines

Wed, Jan 28 - Tue, Feb 3

7:59 pm - 11:24 pm

PIT

ONT

30h 25m1 stop

3:36 pm - 11:44 pm

ONT

PIT

29h 08m2 stops

$272Multiple Airlines

Fri, Jan 30 - Mon, Feb 9

6:19 am - 1:56 pm

PIT

ONT

10h 37m2 stops

7:30 am - 11:42 pm

ONT

PIT

13h 12m2 stops

$276Delta

Wed, Jan 28 - Tue, Feb 3

6:19 am - 1:56 pm

PIT

ONT

10h 37m2 stops

7:30 am - 11:46 pm

ONT

PIT

13h 16m2 stops

$291Delta

Wed, Jan 28 - Tue, Feb 3

2:04 pm - 9:58 pm

DAY

ONT

10h 54m2 stops

1:24 pm - 10:39 pm

ONT

DAY

6h 15m1 stop

$314United Airlines

Sat, Jan 17 - Sat, Jan 24

9:05 am - 5:51 pm

DAY

ONT

11h 46m2 stops

5:05 am - 5:04 pm

ONT

DAY

8h 59m2 stops

$319United Airlines

Sat, Jan 17 - Sat, Jan 24

Delta flights from Ohio to Ontario

Our best Delta deals on Ohio to Ontario flight tickets

Delta

Jan 20

CVG6:45 amCincinnati Cinci./N. Kentucky

10h 11m

1 stop

ONT1:56 pmOntario

Jan 29

ONT7:30 amOntario

8h 34m

1 stop

CVG7:04 pmCincinnati Cinci./N. Kentucky

$247

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Delta

Jan 21

CVG6:45 amCincinnati Cinci./N. Kentucky

12h 30m

2 stops

ONT4:15 pmOntario

Jan 27

ONT7:30 amOntario

8h 34m

1 stop

CVG7:04 pmCincinnati Cinci./N. Kentucky

$252

Find similar

Delta

Jan 21

CVG6:45 amCincinnati Cinci./N. Kentucky

12h 30m

2 stops

ONT4:15 pmOntario

Jan 27

ONT7:30 amOntario

12h 05m

2 stops

CVG10:35 pmCincinnati Cinci./N. Kentucky

$258

Find similar

Frontier flights from Ohio to Ontario

Our best Frontier deals on Ohio to Ontario flight tickets

Frontier

Feb 10

DTW8:30 amDetroit Metropolitan Wayne County

16h 04m

1 stop

ONT9:34 pmOntario

Feb 17

ONT8:35 amOntario

12h 20m

1 stop

DTW11:55 pmDetroit Metropolitan Wayne County

$133

Find similar

Frontier

Feb 2

CVG2:11 pmCincinnati Cinci./N. Kentucky

7h 59m

1 stop

ONT7:10 pmOntario

Feb 5

ONT11:04 amOntario

9h 54m

1 stop

CVG11:58 pmCincinnati Cinci./N. Kentucky

$142

Find similar

Frontier

Feb 3

CLE5:51 pmCleveland Hopkins Intl

24h 16m

1 stop

ONT3:07 pmOntario

Feb 7

ONT7:35 pmOntario

24h 54m

1 stop

CLE11:29 pmCleveland Hopkins Intl

$149

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 2/10

8:30 am-9:34 pm

1 stop16h 04m

Ontario

Tue 2/17

8:35 am-11:55 pm

1 stop12h 20m

$133

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 2/2

2:11 pm-7:10 pm

1 stop7h 59m

Ontario

Thu 2/5

11:04 am-11:58 pm

1 stop9h 54m

$142

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 1/28

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Mon 2/2

6:20 am-7:04 pm

1 stop9h 44m

$254

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 2/18

6:51 pm-11:32 pm

1 stop31h 41m

Ontario

Wed 2/25

6:14 am-5:55 pm

1 stop8h 41m

$264

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 1/28

7:00 am-8:36 pm

1 stop16h 36m

Ontario

Tue 2/3

4:03 pm-6:46 pm

1 stop23h 43m

$264

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Fri 1/30

7:59 pm-11:24 pm

1 stop30h 25m

Ontario

Mon 2/9

3:36 pm-11:44 pm

2 stops29h 08m

$272

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 1/28

6:19 am-1:56 pm

2 stops10h 37m

Ontario

Tue 2/3

7:30 am-11:42 pm

2 stops13h 12m

$276

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 1/28

6:19 am-1:56 pm

2 stops10h 37m

Ontario

Tue 2/3

7:30 am-11:46 pm

2 stops13h 16m

$291

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 1/17

2:04 pm-9:58 pm

2 stops10h 54m

Ontario

Sat 1/24

1:24 pm-10:39 pm

1 stop6h 15m

$314

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 1/17

9:05 am-5:51 pm

2 stops11h 46m

Ontario

Sat 1/24

5:05 am-5:04 pm

2 stops8h 59m

$319

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ohio to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Ontario?

In general, August is the cheapest month to fly from Ohio to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $255. If you aren’t able to travel during the month of August, then book flights to Ontario from Ohio during December instead. Flights to Ontario in December, while not as cheap as those in August, still average around $317.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $337. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ohio to Ontario for around $488.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Ohio to Ontario when you can find flight prices for as low as $307. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $380 on average. Flights to Ontario from Ohio in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Ohio when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $353 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Ohio for as low as $168 on momondo.

Can stopping save me money on Ohio to Ontario flights?

You could potentially save up to 54% on your flight if you consider stops on a Ohio to Ontario flight.

Cheap Ohio to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ohio to Ontario

Fastest flight time	6h 32m
Direct flights	None

The fastest flight from Ohio to Ontario takes 6h 32m

There are no direct flights from Ohio to Ontario. There are no popular flight routes from Ohio to Ontario.

Search flight deals

When did momondo last update prices for flights from Ohio to Ontario Airport?
Prices for flights from Ohio to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ohio to Ontario Airport?
As of December 2025, there are 5 operators available to choose from for flights from Ohio to Ontario Airport.
How old do you have to be to fly from Ohio to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ohio to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Ohio to Ontario

Compare and see reviews for airlines that fly from Ohio to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $140	Free Cancellation	Rating 5.8 3,075 reviews	Search Frontier flights
United Airlines	PriceFrom $228	Free Cancellation	Rating 7.4 9,105 reviews	Search United Airlines flights
American Airlines	PriceFrom $250	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Delta	PriceFrom $254	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
Southwest	PriceFrom $279	Free Cancellation	Rating 8.0 4,253 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ohio to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ohio to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ohio to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from Ohio with this policy.

How can momondo help me find flights from Ohio to Ontario?

momondo helps you find the best flight between Ohio and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ohio to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ohio to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.